Photoshop CC new version - type problem direction of text

Even when typing text with "default features" and "left-to-right direction" special characters like () "" ; : 1257 appear at the far left of the text, as if I would write arabic (what I do very rarely). And the cursor jumps also back to the beginning. This makes writing legends or similar very time-consuming.

Unfortunately the new text module contains more than this mistake (e.g. leading is not working). I was able to go around the problem by changing the "preference-type-dialogue" to "East Asian", but now writing from right-to-left is impossible. Could there be a possibility to revert to the old type module that worked without to much problems?

Both text engines actually have the same problem with respect to Leading. Once text has been transformed, the math used to display it has a bug and triggers the issue you're seeing. If you use untransformed text, you should have no problems.

Photoshop includes two text engines -- Europe and the Far East (aka Latin/CJK) and Middle East and Southeast Asian (aka MENA and Indic). Only the later can handle right-to-left and complex scripts. And only the later can address text directionality. Now, with PS CC 2018, however, you can switch between the two on a paragraph-by-paragraph basis. The control is in the flyout menu of the Paragraph panel.

Does that solve your problem? If not, please let me know so I can understand your issue better.